<div class="p">
    <div class="row">
        <div class="span-4 m-b">
            <div class="card card-bordered">
                <div class="card-head">
                    <div class="card-title">基于select初始化</div>
                </div>
                <div class="card-body">
                    <select class="demo demo-fromdom" name="select1">
                        <option disabled>--请选择--</option>
                        <option value="1">山东</option>
                        <option value="2">山西</option>
                        <option value="3">河南</option>
                    </select>
                </div>
            </div>
        </div>
        <div class="span-4 m-b">
            <div class="card card-bordered">
                <div class="card-head">
                    <div class="card-title">基于数据初始化</div>
                </div>
                <div class="card-body">
                    <div class="demo demo-insert"> </div>
                </div>
            </div>
        </div>
        <div class="span-4 m-b">
            <div class="card card-bordered">
                <div class="card-head">
                    <div class="card-title">多选</div>
                </div>
                <div class="card-body">
                    <div class="demo demo-multi"> </div>
                </div>
            </div>
        </div>
        <div class="span-4 m-b">
            <div class="card card-bordered">
                <div class="card-head">
                    <div class="card-title">层级选择</div>
                </div>
                <div class="card-body">
                    <div class="demo demo-cascader"> </div>
                </div>
            </div>
        </div>
    </div>
</div>
